MESON Chess Problem Database

Problem Display
PID: 164925 (1B4B1/1nn1K3/2P4p/Q2P1p2/1pNNkrpP/1P2Pp2/2P2P2/3R4 w - - 0 1)

Handloser, Ralf Chris

1st HM., Best Problems, 2016

1B4B1/1nn1K3/2P4p/Q2P1p2/1pNNkrpP/1P2Pp2/2P2P2/3R4

#2

14 + 9

4901 Best Problems 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.Sd2#
    • 1...Sxd5+
      • 2.Bxd5#
      • 2.Qxd5#
    • 1...Sa6
      • 2.Sd2#
    • 1...Se6
      • 2.Sd2#
    • 1...Sa8
      • 2.Sd2#
    • 1...Se8
      • 2.Sd2#
  • Tries
    • 1.Kf6?
      • threat
        • 2.Sd2#
      • 1...Sxd5+
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Se8+!
    • 1.Se2?
      • threat
        • 2.Sg3#
        • 2.Rd4#
      • 1...Sxd5+
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Sb5
        • 2.Sg3#
        • 2.Sd2#
      • 1...Se6
        • 2.Sg3#
        • 2.Sd2#
      • 1...g3
        • 2.Sxg3#
        • 2.Rd4#
      • 1...fxe2!
    • 1.Sxf3?
      • threat
        • 2.Sfd2#
        • 2.Scd2#
      • 1...Sxd5+
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Rxf3
        • 2.Rd4#
      • 1...gxf3
        • 2.Rd4#
      • 1...Kxf3!
    • 1.Sb5?
      • threat
        • 2.Rd4#
      • 1...Sxd5+
        • 2.Bxd5#
      • 1...Sxb5
        • 2.Sd2#
      • 1...Se6!
    • 1.Se6?
      • threat
        • 2.Rd4#
      • 1...Sxd5+
        • 2.Qxd5#
      • 1...Sxe6
        • 2.Sd2#
      • 1...Sb5!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Sg3#
      • 1...Sxd5+
        • 2.Qxd5#
      • 1...Kxf5
        • 2.Bh7#
      • 1...Rxf5
        • 2.Rd4#
      • 1...g3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(i);::S(F)
  • Tries
    • Try
      • K(L);S_FLIGHT
      • Threat
        • S(F)
      • Refutation
        • S(i);CHECK
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);XS(G)
    • Try
      • S(G);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(d);SBLOCK,XS(G)::R1(A)
        • P(e);SBLOCK,XS(G)::R1(A)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • S(G);
      • Threat
        • R1(A)
      • Vars
        • S(i);CHECK,OGATE,XP(J)::B(N),XS(i)
        • S(i);XS(G)::S(F)
      • Refutation
        • S(i);
    • Try
      • S(G);
      • Threat
        • R1(A)
      • Vars
        • S(i);CHECK,OGATE,XP(J)::QAB1(I),XS(i)
        • S(i);XS(G)::S(F)
      • Refutation
        • S(i);
  • Actual
    • S(G);XP(f)
    • Threat
      • S(G)
    • Vars
      • S(i);CHECK,OGATE,XP(J)::QAB1(I),XS(i)
      • K(c);OGATEB,S_FLIGHT,XS(G)::B(N)
      • R(d);SBLOCK,XS(G)::R1(A)
      • P(e);::S(G),XP(e)
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